Kcas speed. 1. Kcas speed

 
 1Kcas speed  When an aeroplane is flying at an airspeed which is 1

c) The airspeed indicator, altimeter, and Vertical Speed Indicator. Indicated Air Speed can be displayed by selecting ‘Yes’ for ‘Indicated air speed’ under the Interface tab of Game Options. The cruising speed of 122 KCAS was slightly boosted to 126 KCAS on all latter variants. Maximum horizontal flight speed V H. This difference is more pronounced in. KCAS - What does KCAS stand for? The Free Dictionary. Speed limit: Main Wheel Steering Nose Wheel Tire. There have historically been different nautical miles used and, thus, different variations of knots. 6 equals 13,912 feet. 14 CFR 25. Sea Level: 263 KCAS; 26,000 Feet: 297 KCAS; 31,000. The minimum speed is in accordance with the chart in expanded limitations procedures of Planebook. 7. 0. Its all-composite hull is resistant to extreme environments, even when the aircraft is left in saltwater. Ground speed is the speed of an aircraft with respect to a fixed point on the Earth's surface. 540 deg C. Study with Quizlet and memorize flashcards containing terms like What is the minimum climb rate for instrument departures?, If you go missed approach on a circling approach, which missed approach procedure do you fly?, What. 78. Adding 30 more horses to the proven design immediately won the attention (and affection) of charter operators needing additional power for floatplanes, high-altitude flight. 225 = 68. So, to convert a given KIAS value to MPH, you can follow these simple steps: Take the KIAS value in knots. We calculate the heading with the formula: \psi = \delta + \alpha ψ = δ + α. Transcribed image text: An aeroplane has a stall speed of 78 KCAS at its gross weight of 6,850lbs. Part 25 AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES . 78-0. Find the Calibrated Lift-Off Speed [KCAS] using the chart below,. 240 KCAS Below 10,000' 270 KCAS / 0. Unlock. 97 KCAS. If the stall speed is based on max gross weight, then the reduction factor must also be based on. Go to Cessna Skylane. Performance Summary. Comes equipped with mesh sleeves to reduce the blockage of system air flow. For example, if an aircraft stalls at 50 kcas at 2440 lb, it will stall somewhere around 46 kcas at 2000 lb. H342 IRA (Refer to figure 32. 75 MT, whichever is less. A. 151 land miles per hour. Freezing Fog. In dry air, at 0 degrees Celsius, the speed of sound is about 331. Updated 25 Aug 2022 Learn with flashcards, games, and more — for free. Yaw damper inoperative speed (minimum): Above 20,000 ft. A: 119 KIAS (117 KCAS) Flap Extended Speed V FE: 93 KIAS (92 KCAS) LND. Max. How does the stall speed (KCAS) vary as you climb from sea level to 33,000 feet? B - It remains relatively unchanged throughout the climb. The local speed of sound varies with changes in temperature. Question 4 1 1 pts Find the calibrated airspeed KCAS Given information Pressure from ASCI 309 at Embry-Riddle Aeronautical University. However, we have based our knots calculator on the international nautical mile which is commonly used thoughout the world today. 609344 kilometers per. LSA Caution Speed (Yellow Band) [G500 Ground and Flight Operations, p. The IAS is typically used for low speeds and low altitudes. A 54 stall speed feels as arbitrary as the original limits. Something traveling at one knot is going about 1. Commander claims a 75-percent cruise of 160 knots, about 10 knots faster than the original 114s would fly. Estimate how long it will take to hear the church bell 1 km away. KCAS(SPEED) 200 IOAT +10 95% ENGINE PERFORMANCE it will be 1550 per engine thats mean about 6000ib/hour. Range: 518 nm - Time: 4. 1. 29 million: Engines: Austro AE330: Horsepower Per Side: 180 hp turbodiesel: Propellers: MT (3 blade) Seats You have to slow from flare-entry speed to just above stall – say, 50 KCAS in a 172 with a 46 KCAS stall speed. It is one of the best place for finding expanded names. 439049 ft/s. (SportStar) has Vs0 -- 37 KIAS -- 41 KCAS. Increasing altitude, therefore, results in a. Maximum Occupants. Enter your value in the left-hand textfield then click CONVERT. Durability. Cruise, 80% Power at 7000 Ft. 51444444444 mps Conversion base : 1 kt = 0. Maximum Operating Altitude: 13,000 ft 12. It's basically a beefed-up 180 with a 260-horsepower fuel-injected Continental IO-470. The Commuter was even nicer and came standard with wheel fairings. The graph has selected aircraft superimposed. In 1965, the PA-30B was introduced. Maximum Degraded Flight Controls Speed. If the gross weight of an aircraft without cargo is 500,000 pounds and the stall speed at that weight is 120 KCAS, what is the new stall speed KCAS when 500,000 pounds of cargo is added, i. The retractable landing gear improves the already excellent speed characteristics, and the stretched fuselage allows a more efficient use of cabin space,. 3 x Vso? The correct answer for most test. Previous question Next question. Steerable nose wheel FOR FULL CONTROL. Max TGT Overtemp. 610 deg C. It is equal to exactly 1. Landing Distance: 765 ft. 27. Max speed that full or abrupt control movements can be used without stressing the airframe. Although indicated airspeed (IAS) and true airspeed (TAS) are the speeds most commonly used in aviation, references to calibrated airspeed (CAS) and equivalent airspeed (EAS) are quite often encountered. Common abbreviations: kn, kt. Dividing by π yields a diameter of 4,428 feet, which when divided by 2 equals a radius of 2,214 feet [Figure 11], a foot within that determined through use of. 8 1. 0. weight is 207 kts. 106. Cancel Max Reverse By. What is the stall speed when the weight is 5,000 Ibs? a A. Low Speed: Airplanes with a V C or V MO ≤ 250 KCAS (and M MO ≤ 0. KIAS is used for most tasks in the cockpit since it is easily referenced and shown clearly on the instrument. 221 (14 ply) ktsGS 195 (12 ply) ktsGS 174 ktsGS. Since the airspeed indicator capsule responds to impact pressure, CAS is defined as a function of impact pressure alone. Manufacturer: Pratt & Whitney Canada: Model: PT6A-65SC: Power RatingAn aircraft is flying at a specific altitude where the pilots' 348 knots. For this graph, only TAS can be correct. , the weight is doubled? G. Useful Load: 1,559 lbs. 5 KCAS Speed for best rate of climb ROCmax Best rate of climb 491 ft/min Vbg Speed for best glide 69. Min 1500PSI Max 3200PSI Normal Range 2850-3200PSI. Calibrated airspeed in knots is usually abbreviated as KCAS, while indicated airspeed is abbreviated as KIAS. 88 IMN) with about 0. You need to specify the. Mechanical Engineering. Dividing by π yields a diameter of 4,428 feet, which when divided by 2 equals a radius of 2,214 feet [Figure 11], a foot within that determined through use of. (KCAS). Study with Quizlet and memorize flashcards containing terms like Gross weight with fuel and 2 souls, One engine thrust MIL, One engine thrust MAX and more. DO not exceed this speed with windows open, 2200 pounds. 101 KIAS T. 3 times its basic stalling speed, the coefficient of lift as a percentage of the maximum lift coefficient (CLmax) would be: (A) 77%. A mile per hour is a unit of speed commonly used in the United States. If the mass is increased to 2000 kg , the new value of the stall speed will be ; a) 123 kt. Indicated Air Speed IAS. Below 10,000 Ft: 240 KCAS. 8) multiplied by the time an aircraft takes to complete a circle (68. Calibrated airspeed in knots is usually abbreviated as KCAS, while indicated airspeed is abbreviated as KIAS. Max TGT on Start. Geometric Altitude. The Boeing 747-8 Intercontinental and 747-8 Freighter are the new, high-How does the stall speed (KCAS) vary as you climb from sea level to 33,000 feet? It remains relatively unchanged throughout the climb. Miles per Hour. ] Recommended turbulence penetration airspeed is 270 KCAS / 0. Vfe. 4 deg. . A knot is a unit of speed, equal to one nautical mile per hour. Although KTAS and IAS can be. 8. Velocidade indicada. 2000 divided by 2400 is 0. View the full answer Step 2. 195 kts Ground Speed. 반대로 V 1 이 너무 빠르면 V 1 이내에서 RTO (Reject Take-Off, 이륙 포기)를 했는데도 오버런 할 수도 있다. 70M. 852 km/h (approximately 1. 6) Level 2: Maximum seating configuration of 2 to 6 passengers: Level 3: Maximum seating. SB010-CS, installed 112 KIAS 108 KCAS Aeroplanes with modification n. 68781) = 8. Go down to 350 KCAS and you drop another 0. Rate of climb for the Traveler is 660 fpm, versus the Tiger’s 850 fpm. [2] The same symbol is preferred by the Institute of Electrical and Electronics Engineers ( IEEE ), while kt is also common, especially in aviation, where it is. The relationship between airspeed and ground speed is fairly simple. Cruise Page-Custom Fixed KCAS and Fixed Mach cruise speed can be set. For example, something traveling at Mach 5 is traveling at 5 times the speed of sound. PERFORMANCE Specifications. 570 deg C. Study with Quizlet and memorize flashcards containing terms like Gross weight with fuel and 2 souls, One engine thrust MIL, One engine thrust MAX and more. 156 KCAS. Straight line variation between points. Rate of climb for the Traveler is 660 fpm, versus the Tiger’s 850 fpm. 3 V S with flaps up results in an airspeed of 64 KCAS. A knot is a unit of speed, equal to one nautical mile per hour. Manufacturer: Pratt & Whitney Canada: Model: PT6A-60A: Power Rating 1,050 shp (1,050 shp) Propeller Manufacturer: Hartzell: Description: 4 blade, aluminum, constant-speed, auto feathering: Products. Stopping Distance SPEED Maximum at Sea Level. Sea level to 30,500 feet: 263 KIAS (260 KCAS) Above 30,500 feet: 0. 8 deg/s. The winds add to or subtract from the true airspeed to determine the ground speed, which is ultimately the speed that a pilot wants to know for navigation. For a 40° full flaps the table says that 40 KIAS are actually 47 KCAS. At low speed, near the stall, 40 KIAS (the low end of the white arc) and 48 KCAS (Vs0 in the POH) refer to the same actual speed. VEAS = √2qc ρ0 = √2 ⋅ 2879. Vstall is measured as a true airspeed, it increases approximately 1% for every thousand feet increase in altitude. Registered Member. Lower than what? 1. 3 AIRSPEED INDICATOR MARKINGS MARKING SPEED RANGE (KCAS) SPEED RANGE (KIAS) MEANING WHITE ARC 40 – 67 38 – 67 Range of use of fully extended flaps GREEN ARC 44 – 104 44 – 104 Normal range of use YELLOW ARC 104 – 132 104 – 132 Speed range. A wide panel holds all the latest avionics — we're in 1968, so that includes a. electric propulsion system design was to meet or exceed the required lift coefficient 3. 85 M 41,000' Max if Single Bleed. The true airspeed and heading of an aircraft constitute its velocity relative to the atmosphere. 151 land miles per hour. ] Recommended turbulence penetration airspeed is 270 KCAS / 0. Box 3707 MC 21-70 . 4 seats (but Sport Pilots still limited to one pax) LSA Vh (Maximum speed in level flight at maximum continuous power) of 250 KCAS. 2 KCAS, a 12% reduction in the stall speed. Mach is the ratio of an object's speed to the speed of sound. For v ≠ 0, I will solve the ODE above for v (by. Enter the flare in a 172 at 65 knots instead of 60 and. Compute stall speed in Knots Equivalent Airspeed for aircraft with the following conditions: Weight 10,000 lbs Altitude- Sea Level Wing area 100 ft2 Climax-1. Indicated airspeed (IAS) measures speed along with changes in pressure. Cruising Speed V. for 85%+ efficiency • Equipped with DC-to-DC conversion circuit • Silent 12cm fan with optimized thermal fan speed control • Powerful single +12V rail offers compatible DC output • Complete over current protection and over temperature. If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will. This is close to the 48 KCAS in your POH. You can add some speed to that in gusty. Under any other conditions, CAS may differ from the aircraft’s TAS and GS. for 85%+ efficiency • Equipped with DC-to-DC conversion circuit • Silent 12cm fan with optimized thermal fan speed control • Powerful single +12V rail offers compatible DC output • Complete over current protection and over temperature. So, to convert a given KIAS value to MPH, you can follow these simple steps: Take the KIAS value in knots. Maximum number of passengers on board: The actual number of passengers - excluding infants - shall not exceed the number of serviceable seats provided with seat belts and the number of life vests - when required under CFR 121. 200 knots. Something traveling at one knot is going about 1. Study with Quizlet and memorize flashcards containing terms like Gross weight with fuel and 2 souls, One engine thrust MIL, One engine thrust MAX and more. EAS (Equivalent Air speed)에 고도에 따른 공기 밀도에 대한 영향을 고려한 속도이다. 4 seats (but Sport Pilots still limited to one pax) LSA Vh (Maximum speed in level flight at maximum continuous power) of 250 KCAS. Commonly, people think in terms of “Velocity”, and it is a nice memory aid, as “Velocity” begins with “V”. The KCAS PLUS GM is 80Plus Gold certified for high performance with up to 90%+ efficiency. Calibrated airspeed in knots is usually abbreviated as KCAS, while indicated airspeed is abbreviated as KIAS. In a 2,300-pound, 1978 Cessna C172N Skyhawk, the zero-bank, power-off, flaps-up stalling airspeed is 53 KCAS for its most forward CG and 50 KCAS for its most. Indicated Air Speed IAS. The Cessna 150’s original Vne (do not exceed speed) was 136 KCAS, which was improved to 141 KCAS on follow-up variants. (1) A maximum stalling speed or minimum steady flight speed without the use of lift-enhancing devices (V S1 ) of not more than 45 knots CAS, except for airplanes, which must have a V S1 speed of not more than 54 knots CAS at the aircraft's maximum certificated takeoff weight and most critical center of gravity. 75 MT, whichever is lower. 1. Therefore, if the TAS is 300 knots and you have a 100-knot tailwind, the GS is 400 knots. Owing to its advantages, the airspeed of aircraft is always represented in ‘knots’. [2] The same symbol is preferred by the Institute of Electrical and Electronics Engineers ( IEEE ), while kt is also common, especially in aviation, where it is. King Air 360ER; King Air 360; King Air 260; Denali; Baron G58. Alternatives include the Beech Bonanza, Mooney. Note that single-engine aircraft, such as the PC-12 and TBM-850, are turboprop aircraft that were granted exemption from the 61. flap speed V FE. Maximum Operating Altitude: 12000 ft 14000 ft (see note 7) 12. The SportStar is a bit lighter (1320 lbs MTOW) but also quite smaller. Knots are a unit of speed, just like miles per hour (MPH) or kilometer per hour (KPH), and indicated airspeed is simply the number shown on the airspeed indicator. Note: You can increase or decrease the accuracy of this answer by. Type in your own numbers in the form to convert the units!The KCAS PLUS is 80Plus Bronze certified for high performance with up to 85%+ efficiency. The difference between IAS and CAS varies greatly from level cruise to slow stall speeds/configurations. 4. Indicated airspeed (IAS) measures speed along with changes in pressure. H342 IRA (Refer to figure 32. The minimum speed is 210 kts. Max Flap Extended Speed: Flaps 10: KCAS 107 / KIAS 110 Flaps Full: KCAS 85 / KIAS 85. Stall speed naturally limits maximum speed in level flight (defined as V H in the LSA guidance), so the NPRM proposes to remove the max V H of 120 kcas under standard conditions and instead leave. KCAS:95 KIAS:97. Vso Stalling Speed or the minimum steady flight speed is. Based on the 1976 US Standard Atmosphere (NASA-TM-X-74335) methodologies and valid through 20 km (stratopause) for atmospheric flight calculations (identical to ICAO and International Standard Atmosphere. 1 in. In a generic Cessna 172, the best glide speed is approximately 66 knots calibrated airspeed (KCAS). Engine: Rotax 912 (100 hp) *At standard conditions at sea level. Your groundspeed will be higher, and the same as your KTAS in zero wind as well. weight b. If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user. b) decrease during a climb. Home Subjects. 4 gallons per hour at 75% power; Range: 550 nautical miles; Service Ceiling: 15,000 feet; Landing Ground Roll: 776 feet; Landing Over 50 ft. A Velocidade indicada (em inglês: Indicated airspeed - IAS) é a velocidade lida diretamente do velocímetro de uma aeronave, que funciona utilizando um sistema de Pitot-Estático. Scheduled maintenance: Thursday, January 26 from 6PM to 7PM PST hello quizletMaximum Limit Speed: 223 kias (413 km/h) Stall Speed: 73 kcas (135 km/h) Powerplant. Mach number and knots are both units used to measure speed. Calibrated airspeed in knots is usually abbreviated as KCAS, while indicated airspeed is abbreviated as KIAS . (c)Calculate the maximum load factor for V = 110 ktas. Subpart B--Flight Performance: Turbine Engine Powered Airplanes [(a) The reference stall speed, V SR, is a calibrated airspeed defined by the applicant. 5 deg/s variance. 4. Approaching at 1. *For a given aircraft in a given configuration, stall KCAS changes when _____ changes (at least three factors). Get KCAS full form and full name in details. We can confidently guide our clients to ensure them that they are conducting their studies in the most effective way to assess on-target and off-target biodistribution. The flaps-up stall speed at maximum weight is 49 KCAS. Cancel Max Reverse By. Adjusting the approach speed based on a lower stall speed. Cessna 340. Note: You can increase or decrease the accuracy of this answer by. 9438444924406 knots, or 3. 6. For a top-of- the-line "Professional" Twin Comanche, you paid about $41,200. 3048 meters per second, or about 0. 87M were entered on the Performance Initialization menus. Added manual, realistic and KCAS wheel attribute modes; Added manual luck mode; Added unleveled, retroactive and unchanged health modes; Added various sleeping modes; Added ability to configure the speed of individual skills; Updated xp calculation for various actions like quests, repair items and trainingThat's the difference. Something traveling at one kilometer per hour is traveling about 0. 97] The top of the yellow band indicates the minimum speed at which a 30 or 40-degree bank turn (at a constant flight path angle) can be. Max. The last year of Apache production was 1965, for the Aztec had stolen its. Back to Top. 131 KTAS. One solution to the ODE above is v(y) = 0, which gives y = k (where k is a constant). 9 Drag in Compressible Flow. The Seastar was designed in Germany and strictly adheres to Dornier’s high- quality standards. Landing Gear Extended Speed. The ground speed (GS) is how fast the aircraft is actually moving over the ground and is what affects the total flight time. CAS is a correction for installation and instrument errors, so there will be more errors (for most airplanes) when the attitude is nose high and slow and that is why the CAS is so much higher than the IAS in your example. Your airspeed indicator (assuming no errors) will read only 68. (Consider that the gear would obviously still be in the down position at lift-off). 3. 3. At airspeeds above 187 KCAS, the roll induced by a full rudder deflection could be corrected by control wheel input; however, in the same configuration at airspeeds of 187 KCAS and below, the roll induced by a full rudder deflection could not be completely eliminated by full control wheel input in the opposite direction, and the airplane. 852 km/h (approximately 1. Knots are a speed measurement that is nautical miles per hour. -Added ECON button to LSK 5L shown when other mode is selected. The 77 cubic ft capacity factory installed system will provide plenty of oxygen for all occupants in normal flight durations. If that C172P is at 2100 lb, then sqrt(2100/2400) is . 8 SSY on Figure 1) toward BRA, and the 230 KCAS. 75 KCAS. Real World Target: 23 seconds. Extended Speed V. Keep 'em high and level! You can use our Distance and Speed Converter if you need to know the conversion between knots and miles per hour (or kilometers per. Record decel time from 160 to 140 KCAS. The stall speed (V s) for a Cessna 206 is 54 kias. Manoeuvring speed V A. 151 mph or 0. Mechanical Engineering questions and answers. The IAS is typically used for low speeds and low altitudes. Operation in Freezing Fog Prohibited Below -10C. When an aeroplane is flying at an airspeed which is 1. Study with Quizlet and memorize flashcards containing terms like KCAS Knots Calibrated Airspeed, KIAS Knots Indicated Airspeed, KTAS Knots True Airspeed and more. That’s the number you can read and displayed on the airspeed indicator. Altitude 10,000 Ft Or Above: 270 KCAS / 0. You are currently converting speed units from knot to meters per second 1 kt = 0. Consider KTAS as the speed a plane would be going on the ground, while IAS offers a more accurate measurement in the air. A Velocidade indicada (em inglês: Indicated airspeed - IAS) é a velocidade lida diretamente do velocímetro de uma aeronave, que funciona utilizando um sistema de Pitot-Estático. Air Speed Limitations V NE (never exceed) Power-on and Power-off 98 KCAS sea level to 3 000 ft DA, decreasing to 83 KCAS at 8 000 ft DA, decreasing to 56 KCAS at 14 000 ft DA. Air Speed Indicator; Pitot Static System; Categories. Calibrated airspeed in knots is usually. Running lean of peak from that power setting, the speed dropped off to 194 knots true, but fuel consumption plunged to. 340(a). Calculate standard and non-standard atmosphere properties and speed conversions. Calibrated airspeed is IAS corrected for installation and instrument errors. Sea Level: 340 KCAS; 26,000 Feet: 340 KCAS; 26,000 to 37,000 feet: 0. 682 miles per hour. The average speed of sound is 330 meters per second. 70 Mach calibrated) Maximum tire ground speed: 165 knots. The practice of using a different mph system is very old. The KCAS PLUS M is 80Plus Bronze certified for high performance with up to 85%+ efficiency. The transition happens around FL260 at which the Mach Maximum speed of the plane, intersects with the Maximum speed IAS of the plane. Mmo. 67 KCAS c C. For comparison, the LSA instruct in (SportStar) has Vs0 -- 37 KIAS -- 41 KCAS. Common abbreviations: km/h, kmph, km/hr, km/hour. • Silent 14cm fan with optimized thermal fan speed control • Powerful single +12V rail offers compatible DC output • Complete over current protection and over. Speed limit: Main Wheel Steering Nose Wheel Tire. (Dynamic Pressure definition and formula can be reviewed in "Flight Theory and. The 150 is an all-metal, tricycle-gear airplane introduced by Cessna Aircraft Company in 1959. It also distinguishes between four levels depending on the number of seats (0-1, 2-6, 7-9 and 10-19 passengers). 3 VSO KCAS (max gross weight)). 3. 150 KTS . KCAS. In aviation, equivalent airspeed ( EAS) is calibrated airspeed (CAS) corrected for the compressibility of air at a non-trivial Mach number. In aviation, equivalent airspeed ( EAS) is calibrated airspeed (CAS) corrected for the compressibility of air at a non-trivial Mach number. d) 200 kt. 𝐶 torque coefficient KCAS knots calibrated airspeed D drag force KEAS knots equivalent airspeed(1) Low speed — for aeroplanes with a V NO or V MO ≤ 250 knots calibrated airspeed (KCAS) or a M MO ≤ 0. Conversion of true airspeed to the equivalent airspeed can be done directly by: VEAS = V ⋅ √ ρ ρ0. While not an airspeed, GS is important for navigation and has a major impact on the time it takes to get to a destination. A fan speed of 45% and a longitudinal stick position of about 41% should maintain this condition with a pitch attitude of 2O nose-down. 67 KCAS c C. 5. 175 KIAS. On the other hand, if the wind is blowing against the. CreateIf powered, it weighs less than 254lbs empty weight excluding floats and safety devices which are intended for deployment in a potentially catastrophic situation, has a fuel capacity not exceeding 5 US gallons, is not capable of more a speed of more than 55 KCAS at full power in level flight and has a power-off stall speed which does not exceed. [3] An aircraft's indicated airspeed in knots is typically abbreviated KIAS for " Knots -Indicated Air Speed" (vs. Piper Apache. Delivers the greatest gain of altitude in the shortest possible horizontal distance. kt meters per second . 51444444444 mps. The Boeing 747-8 Family . 4. for 85%+ efficiency • Equipped with DC-to-DC conversion circuit • Silent 12cm fan with optimized thermal fan speed control • Powerful single +12V rail offers compatible DC output • Complete over current protection and over temperature. 15 normal miles per hour. e. 8) multiplied by the time an aircraft takes to complete a circle (68. A barometer and airspeed indicator reads an indicated airspeed outside air thermometer are installed on the aircraft and read 57. Traditionally it is measured using an analogue TAS indicator, but as the Global Positioning System has. Meters per second to Knots (Swap Units) Note: Fractional results are rounded to the nearest 1/64. Per 61. Groundspeed is the actual speed of the airplane over the ground. 3 VSO KCAS (max gross weight)). Calculating off of KIAS gives you a speed that's a whole 10 knots too slow! PS: From my personal experience of about 150 hours on 152s, a final approach speed of 60-65, depending on conditions, is perfectly fine. g. 145 KTS . metric units. SPL Vh limit removed. 23 seconds decel time from 160 KCAS to 140 KCAS. 240 KCAS Below 10,000' 270 KCAS / 0.